IQ Builder Gear Set Learning Toys Gears Set for Beginners Building Educational Games Wonderfully moving gears brings hours of creativity and motor skill building Kids from the age of 6 to 40+ enjoy building castles in the sky Encourages problem solving, creativity, and perserverance, hundreds of designs waiting to be bulilt A fun way to learn colors and shapes, pieces snap together easily Motor requires 1 AA batteries, not included. Features 82 durable plastic pieces